A futuristic, oppressive & decadent state demands teenagers for their blood sport. Making a resourceful girl take her little sister’s spot to kill to survive ‘the hunger games’.

How about "In a dystopian future, a rebellious teenage huntress from a poverty stricken district must compete in a gladiatorial contest against trained killers in order to save her sister's life."

Hi Justin. I find this logline very confusing. Who is the hero? I presume it's the resourceful girl. What makes her so resourceful and what happens that she decides to take her sister's place? Is the blood sport a coming of age thing? Who is the opponent? An official of the state or the whole system? See what I mean? Confusing. Need a bit more specificity. Could be a great yarn.